JP5184780B2 - 標的分子の認識場が再構築可能な分子認識ポリマーおよびその製造方法 - Google Patents
標的分子の認識場が再構築可能な分子認識ポリマーおよびその製造方法 Download PDFInfo
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- JP5184780B2 JP5184780B2 JP2006512999A JP2006512999A JP5184780B2 JP 5184780 B2 JP5184780 B2 JP 5184780B2 JP 2006512999 A JP2006512999 A JP 2006512999A JP 2006512999 A JP2006512999 A JP 2006512999A JP 5184780 B2 JP5184780 B2 JP 5184780B2
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- 150000001768 cations Chemical class 0.000 description 1
- IZXDQSKCOWSUOG-BJMVGYQFSA-N chembl1957554 Chemical compound NC(=O)N\N=C\C1=CC=CC=C1O IZXDQSKCOWSUOG-BJMVGYQFSA-N 0.000 description 1
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- 229930002875 chlorophyll Natural products 0.000 description 1
- 235000019804 chlorophyll Nutrition 0.000 description 1
- ATNHDLDRLWWWCB-AENOIHSZSA-M chlorophyll a Chemical compound C1([C@@H](C(=O)OC)C(=O)C2=C3C)=C2N2C3=CC(C(CC)=C3C)=[N+]4C3=CC3=C(C=C)C(C)=C5N3[Mg-2]42[N+]2=C1[C@@H](CCC(=O)OC\C=C(/C)CCC[C@H](C)CCC[C@H](C)CCCC(C)C)[C@H](C)C2=C5 ATNHDLDRLWWWCB-AENOIHSZSA-M 0.000 description 1
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- 230000006378 damage Effects 0.000 description 1
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- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- MZMJHXFYLRTLQX-UHFFFAOYSA-N ethenylsulfinylbenzene Chemical compound C=CS(=O)C1=CC=CC=C1 MZMJHXFYLRTLQX-UHFFFAOYSA-N 0.000 description 1
- UJTPZISIAWDGFF-UHFFFAOYSA-N ethenylsulfonylbenzene Chemical compound C=CS(=O)(=O)C1=CC=CC=C1 UJTPZISIAWDGFF-UHFFFAOYSA-N 0.000 description 1
- -1 etioporphyrin Chemical compound 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- GVEPBJHOBDJJJI-UHFFFAOYSA-N fluoranthrene Natural products C1=CC(C2=CC=CC=C22)=C3C2=CC=CC3=C1 GVEPBJHOBDJJJI-UHFFFAOYSA-N 0.000 description 1
- GNBHRKFJIUUOQI-UHFFFAOYSA-N fluorescein Chemical compound O1C(=O)C2=CC=CC=C2C21C1=CC=C(O)C=C1OC1=CC(O)=CC=C21 GNBHRKFJIUUOQI-UHFFFAOYSA-N 0.000 description 1
- 229910003472 fullerene Inorganic materials 0.000 description 1
- 150000003278 haem Chemical class 0.000 description 1
- 229940109738 hematin Drugs 0.000 description 1
- 229910000040 hydrogen fluoride Inorganic materials 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000012482 interaction analysis Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- MWDZOUNAPSSOEL-UHFFFAOYSA-N kaempferol Natural products OC1=C(C(=O)c2cc(O)cc(O)c2O1)c3ccc(O)cc3 MWDZOUNAPSSOEL-UHFFFAOYSA-N 0.000 description 1
- 239000003446 ligand Substances 0.000 description 1
- 150000002678 macrocyclic compounds Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- VHRYZQNGTZXDNX-UHFFFAOYSA-N methacryloyl chloride Chemical compound CC(=C)C(Cl)=O VHRYZQNGTZXDNX-UHFFFAOYSA-N 0.000 description 1
- 125000001434 methanylylidene group Chemical group [H]C#[*] 0.000 description 1
- STZCRXQWRGQSJD-GEEYTBSJSA-M methyl orange Chemical compound [Na+].C1=CC(N(C)C)=CC=C1\N=N\C1=CC=C(S([O-])(=O)=O)C=C1 STZCRXQWRGQSJD-GEEYTBSJSA-M 0.000 description 1
- 229940012189 methyl orange Drugs 0.000 description 1
- CEQFOVLGLXCDCX-WUKNDPDISA-N methyl red Chemical compound C1=CC(N(C)C)=CC=C1\N=N\C1=CC=CC=C1C(O)=O CEQFOVLGLXCDCX-WUKNDPDISA-N 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
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- UVEWQKMPXAHFST-UHFFFAOYSA-N n,1-diphenylmethanimine Chemical compound C=1C=CC=CC=1C=NC1=CC=CC=C1 UVEWQKMPXAHFST-UHFFFAOYSA-N 0.000 description 1
- ZIUHHBKFKCYYJD-UHFFFAOYSA-N n,n'-methylenebisacrylamide Chemical compound C=CC(=O)NCNC(=O)C=C ZIUHHBKFKCYYJD-UHFFFAOYSA-N 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 235000013824 polyphenols Nutrition 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 150000004033 porphyrin derivatives Chemical class 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
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- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 125000000168 pyrrolyl group Chemical group 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 235000005875 quercetin Nutrition 0.000 description 1
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- LISFMEBWQUVKPJ-UHFFFAOYSA-N quinolin-2-ol Chemical compound C1=CC=C2NC(=O)C=CC2=C1 LISFMEBWQUVKPJ-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 description 1
- 229940043267 rhodamine b Drugs 0.000 description 1
- QBERHIJABFXGRZ-UHFFFAOYSA-M rhodium;triphenylphosphane;chloride Chemical compound [Cl-].[Rh].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 QBERHIJABFXGRZ-UHFFFAOYSA-M 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- PJANXHGTPQOBST-UHFFFAOYSA-N stilbene Chemical compound C=1C=CC=CC=1C=CC1=CC=CC=C1 PJANXHGTPQOBST-UHFFFAOYSA-N 0.000 description 1
- 235000021286 stilbenes Nutrition 0.000 description 1
- 125000005504 styryl group Chemical group 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- YNHJECZULSZAQK-UHFFFAOYSA-N tetraphenylporphyrin Chemical compound C1=CC(C(=C2C=CC(N2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3N2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 YNHJECZULSZAQK-UHFFFAOYSA-N 0.000 description 1
- ANRHNWWPFJCPAZ-UHFFFAOYSA-M thionine Chemical compound [Cl-].C1=CC(N)=CC2=[S+]C3=CC(N)=CC=C3N=C21 ANRHNWWPFJCPAZ-UHFFFAOYSA-M 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000011995 wilkinson's catalyst Substances 0.000 description 1
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Description
蒲池幹治、遠藤剛監修者、『ラジカル重合ハンドブック』(1999)エヌティーエス Matsui,J.,Higashi,M.,Takeuchi,T.Molecularly Imprinted Polymer as 9−Ethyladenine Receptor Having a Porphyrin−based Recognition Center,J.Am.Chem.Soc.2000,122,5218−5219.
本発明に係る分子認識ポリマーは、標的分子に対して特異的かつ可逆的に結合する分子と標的分子と相互作用する分子とを有する分子認識ポリマーであって、上記分子認識ポリマー中に、標的分子に対して相補的な標的分子認識場が形成されており、かつ、上記標的分子と相互作用する分子を脱着または交換することができるものであればよい。
本発明に係る分子認識ポリマーの製造方法は、標的分子と標的分子に対して特異的かつ可逆的に共有結合を形成する共有結合性官能基とを結合させ、複合体を合成する、複合体合成工程と、上記複合体と標的分子と相互作用する分子とを、架橋剤と共重合し、重合体を得る重合工程と、得られた重合体から上記標的分子および上記標的分子と相互作用する分子を脱離させる脱離工程とを含むものであればよい。したがって、本発明に係る分子認識ポリマーの製造方法は、上記工程以外の工程を含むものであってもよい。上記以外の工程としては、例えば、後述の標的分子還元工程を挙げることができるが、これに限定されるものではない。
1−1 シンコニジンの誘導体化
CDの誘導体化のスキームを図3に示した。図3Aに示したように、まずCDの持つビニル基を還元し、その後、図3Bに示したように、メタクリル酸との複合体合成(メタクリロイル化)を行ったビニル基の還元は、当該CDのビニル基が重合の際にポリマー中に組み込まれる可能性を回避することを目的としている。
CD1.06gをエタノール/ベンゼン=10/3mlに溶かし、Wilkinson触媒50.78mgを加えてH2置換下、室温で15時間撹拌した反応前は透明な黄色液体であったが、水素置換下で撹拌中に白色沈殿が生じた。これは、ビニル基が還元されたため、溶解度が下がったためと考えられた。MSで反応の追跡を行ったが、原料ピーク(295.3)は時間経過ごとに減少し、逆に分子量が2増えたピーク(297.3)は増加、15時間後には殆ど生成物のピークとなったここで反応を止め、溶媒を留去した後、アルミナカラム(クロロホルム/メタノール=50/1)で精製を行い、白色粉末650mgを得た。1H NMRにより、ビニル基の還元されたCDであることを確認した。収率は60.8%であった。
還元したCD249.75mgをテトラヒドロフラン(THF)100mlに溶かし、トリエチルアミン(Et3N)0.35ml、メタクリロイルクロリド0.16mlを加えて、30℃で12時間撹拌した。クロロホルムで抽出を行った後、溶媒を留去してアルミナカラム(クロロホルム)で単離した。これにより、粘性のある固体85mgを得た。NMRでメタクリロイル化された還元CDであることを確認した。収率は27.8%であった。
ポルフィリンの誘導体化のスキームを図4に示した。図4に示したように、まずテトラ(ヒドロキシフェニル)ポルフィリンを亜鉛錯体化し、メタクリル酸との複合体を合成した(メタクリロイル化)。
誘導体化したシンコニジンとポルフィリンを用いて、表1に示したレシピでインプリントポリマーを合成し、認識場の構築を行った。表1中、シンコニジン誘導体は図3右端の還元シンコニジン−メタクリル酸複合体であり、ポルフィリン誘導体は図4右端のポルフィリン亜鉛錯体−メタクリル酸複合体である。開始剤以外を小型バイアル中で混合し、凍結乾燥を行った後、密封して70℃で15時間ラジカル重合させた。これにより、深紫色の硬いが簡単に砕くことのできるポリマーが得られた。得られたポリマーは乳鉢で粉砕した。
2−1 ポルフィリンの切り出し(認識場の破壊)
ポルフィリン、シンコニジンの切り出しによる分子認識機能の破壊を行った。粉砕したポリマーを、2.0M水酸化ナトリウムのメタノール溶液25ml中で48時間還流させ、加水分解を行った。HClを加えて1時間撹拌した後、ろ過してソックスレー(メタノール/クロロホルム=130/50ml)で24時間洗浄を行った。
ポルフィリン亜鉛錯体の再結合による、分子認識場の再構築を行った。乾燥したポリマーをZnTPyP溶液(溶媒:分光分析用クロロホルム)中、室温で4時間撹拌した。シリンジフィルターでろ過して、ポリマーと溶液に分離し、ろ液の吸光度の変化から、吸着量を算出した。ポリマーはフィルターから取り出し、乾燥させた。
3−1 リファレンスを用いた吸着量の比較
再構築された認識場の精度を確認するために、CD(化4参照)キノリン(化5参照)およびベンジルアルコール(化6参照)を用いて、吸着量の比較を行った。ポルフィリンを吸着させて認識場の再構築を行ったポリマー10mgを30μMの各溶液(分光分析用ベンゼン)1ml中、室温で4時間撹拌した。シリンジフィリルターでろ過して、ポリマーと溶液に分離し、ろ液の吸光度の変化からポリマーに対するそれぞれの吸着量を求めた。
再構築された認識場の精度をCDおよびCDのジアステレオマーであるシンコニン(cinchonine、以下「CN」と略記する。化7参照)の吸着量の比較により確認した。ポルフィリンを吸着させて認識場の再構築を行ったポリマー10mgを40μMの各溶液(分光分析用ベンゼン)1ml中、室温で4時間撹拌した。シリンジフィリルターでろ過して、ポリマーと溶液に分離し、ろ液の吸光度の変化からポリマーに対するそれぞれの吸着量を求めた。
ブランクポリマー(以下「BP」と略記する)は以下のように設計した。
ポルフィリンを結合させたインプリントポリマー(IP(P))、ポルフィリンを結合させていないインプリントポリマー(IP(−))、および各BPそれぞれ10mgをCD溶液(28.2μM,分光分析用ベンゼン)1ml中で4時間撹拌した後、シリンジフィルターでろ過してポリマーと溶液に分離し、溶液の吸光度変化からそれぞれのポリマーに対するCD吸着量を求めた。
Claims (5)
- 標的分子に対して特異的かつ可逆的に結合する分子の重合体と、該重合体に吸着している、標的分子と相互作用する分子と、を有する分子認識ポリマーであって、
上記分子認識ポリマー中に、標的分子を認識するための空間が形成されており、
かつ、上記標的分子と相互作用する分子を、上記重合体に対して脱着することができ、
上記標的分子または上記標的分子と相互作用する分子の少なくともいずれかが生体分子であり、
上記標的分子と相互作用する分子は、ポルフィリン亜鉛錯体であることを特徴とする分子認識ポリマー。 - 上記標的分子と相互作用する分子は、標的分子と相互作用して情報を発信する機能を有していることを特徴とする請求項1に記載の分子認識ポリマー。
- 上記標的分子に対して特異的かつ可逆的に結合する分子は、標的分子に対して特異的かつ可逆的に共有結合を形成する共有結合性官能基を有することを特徴とする請求項1または2に記載の分子認識ポリマー。
- 上記標的分子と、上記標的分子と相互作用する分子と、が共に存在する場合に、上記標的分子と結合することができることを特徴とする請求項1ないし3のいずれか1項に記載の分子認識ポリマー。
- 請求項3に記載の分子認識ポリマーの製造方法であって、
上記標的分子と、上記標的分子に対して特異的かつ可逆的に結合する分子が有する、上記標的分子に対して特異的かつ可逆的に共有結合を形成する共有結合性官能基と、を結合させて複合体を合成する、複合体合成工程と、
上記複合体と、上記標的分子と相互作用する分子と、を架橋剤によって共重合して重合体を得る、重合工程と、
得られた重合体から、上記標的分子および上記標的分子と相互作用する分子を脱離させる脱離工程と、を含む分子認識ポリマーの製造方法。
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JP5908271B2 (ja) * | 2011-12-20 | 2016-04-26 | 三星電子株式会社Samsung Electronics Co.,Ltd. | 高分子化合物、酸素透過膜、酸素透過材及び電気化学デバイス |
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US11051529B2 (en) | 2015-01-13 | 2021-07-06 | The Decaf Company, Llc | Programmable polymer caffeine extraction |
CN105289725B (zh) * | 2015-10-20 | 2017-10-10 | 华东师范大学 | 一种金鸡纳碱多相催化剂的制备方法及其应用 |
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